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Low reported severity

London: shopper told to leave a Sainsbury's store after a Facewatch facial recognition alert, which Sainsbury's says concerned a different person

A shopper at the Sainsbury's store in Elephant and Castle, London, told PA that staff approached the shopper on 27 January, asked the shopper to leave and took the shopping. The BBC and LBC report that staff pointed to a sign about the store's Facewatch facial recognition system and told the shopper to contact Facewatch. Sainsbury's said the system had flagged a different person. Sainsbury's and Facewatch said a staff member approached the wrong customer, and Facewatch said it held no alert or record for the shopper. To confirm this, the shopper sent Facewatch a passport copy and a photo. Sainsbury's apologised, offered a 75 pound voucher and said store management would receive additional training. The shopper reports embarrassment and feeling like a criminal. Both companies attribute the error to store staff.

AI system
Facewatch facial recognition
Facewatch
Occurred
27 Jan 2026
Reported
30 January 2026
Event location
United Kingdom
What the AI did
Relation unknown
Reported harm
Psychological DistressReputational Harm
Whose AI use
An institution’s AI use
Setting
Everyday life
Evidence
AI involvement reported · Causal attribution disputed · 6 sources, 1 underlying account
7 claims: 7 reported. 7 open questions
People reported harmed
1 person

AI system as recorded: Facewatch live facial recognition alerts (deployed by Sainsbury's)

Reported harm

The shopper told LBC and PA that being told to leave the store was embarrassing and intimidating and left the shopper feeling like a criminal. The shopper also reports having to send a passport copy and a photo to Facewatch to establish that no record existed.

What remains unknown

  • Whether the system matched the shopper's face at any point is not established. The account that the alert concerned another person rests on Sainsbury's and Facewatch statements and on the Guardian phrase "It is understood". No source outside the two companies confirms it.
  • Facewatch told the shopper it "did not play any part" in the approach, while Sainsbury's told The Register that the system alerted managers to a match for another person. The sources do not reconcile the two statements.
  • The event date rests on the PA copy alone. A Guardian feature of 3 May 2026 says February, and the LBC report dated 30 January 2026 rules that out. The PA copy carries no year and the year comes from the LBC and BBC publication dates.
  • The LBC text refers to the Old Kent Road shop in two passages. The BBC, PA and the Sainsbury's statement name the Elephant and Castle store, which the record uses.
  • Whether the person for whom the alert was raised was an offender, and what the staff compared, is not stated.
  • Sainsbury's says this was the first time a store manager misidentified a customer after the system issued an alert (BBC and The Register). That is the company's own claim and was not checked.
  • All inspected sources trace to the shopper's interviews and to Sainsbury's and Facewatch statements, so no claim is corroborated.

What the evidence supports

AI involvement: reported. Sainsbury's says the store's Facewatch system generated an alert for a different person. Sainsbury's and Facewatch say a store staff member approached the wrong customer. Staff told the shopper that facial recognition had flagged the shopper, the BBC reports a staff member looking between the shopper and a phone before nodding to colleagues, and the Guardian reports that a staff member appeared to affirm that the shopper was the person pictured on a device. Facewatch says it held no record or alert for the shopper. The system therefore did not make a claim about the shopper on the companies' account, and the relation between the system and the shopper is recorded as unknown. Both companies attribute the error to human handling of the alert.

7 claims: 7 reported. What the statuses mean

Reported A shopper at the Sainsbury's store in Elephant and Castle, London, was approached by store staff, told to leave and escorted out, leaving the shopping behind. The BBC reports three staff including a security guard, one of whom looked between the shopper and a phone before nodding to colleagues.

Causal attribution. The shopper's own account, given separately to the BBC, LBC and PA. Sainsbury's confirmed it approached the wrong person and apologised. Outlets differ on the staff count (three staff including a security guard in the BBC report, security plus two managers in the LBC report, three store managers holding smartphones in The Register).

Reported The event took place on 27 January 2026.

Causal attribution. Only the PA copy gives a day, and it gives no year. The LBC report dated 30 January 2026 and the BBC report of 5 February 2026 (store added to the Facewatch rollout in January) place it in 2026. A Guardian feature of 3 May 2026 says February, which conflicts with the LBC publication date. The record uses the PA date.

  • enfieldindependent.co.uk(opens in new tab) supports · English
    says he was in his local store on January 27 when staff approached him, asked him to leave and took his shopping.
  • lbc.co.uk(opens in new tab) context · English
    30 Jan 2026, 14:21 Updated: 30 Jan 2026
  • bbc.co.uk(opens in new tab) context · English
    announced in January that it would be expanding its use of the Facewatch software to include five London stores - Dalston, Elephant and Castle, Ladbroke Grove, Camden and Whitechapel.
  • theguardian.com(opens in new tab) contradicts · English
    was asked to put down his shopping basket and leave his local Sainsbury’s store after being told he had come up on the Facewatch system in February.
Reported Staff told the shopper the facial recognition system had flagged the shopper, gave no other explanation, and pointed to a poster or QR code about Facewatch with instructions to contact that company.

Causal attribution. The shopper's own account. The Guardian says the supermarket staff were unable to explain why the shopper was being told to leave.

  • lbc.co.uk(opens in new tab) supports · English
    staff informed him he had been flagged by their facial recognition system.
  • bbc.co.uk(opens in new tab) supports · English
    When he asked why, he was directed to a poster in the shop's front window about the use of facial recognition technology and told to contact Facewatch.
  • theguardian.com(opens in new tab) supports · English
    would only direct him to a QR code leading to the website of the firm Facewatch
Reported Sainsbury's told The Register that its Facewatch system correctly identified a man on its offenders' database and alerted store managers, and that the manager then approached the wrong person. Facewatch said a member of staff approached the wrong customer and that the shopper was not on its database and had not been subject to any alert generated by Facewatch.

Causal attribution. Sainsbury's and Facewatch describing their own conduct and system. The inspected sources do not include a check by anyone outside the two companies. Facewatch also told the shopper that it "did not play any part" in the approach (see c5), and no source reconciles that with the Sainsbury's account of a system alert for another person.

Reported To find out whether it held a record, the shopper had to send Facewatch a copy of a passport and a photo. Facewatch then confirmed the shopper was not on its database and that it did not play any part in the shopper being approached.

Causal attribution. The shopper's account and Facewatch's statement as relayed by the BBC. The Guardian and BBC both rest on the shopper's interview.

  • bbc.co.uk(opens in new tab) supports · English
    he had to send a copy of his passport and photo of himself.
  • bbc.co.uk(opens in new tab) supports · English
    the company confirmed he was not on its database, and told him "Facewatch did not play any part in [him] being approached at the store".
  • theguardian.com(opens in new tab) supports · English
    he was told to send in a picture of himself and a photograph of his passport before the firm confirmed it had no record of him on its database.
Reported Sainsbury's apologised, offered the shopper a 75 pound voucher and said management at the store would receive additional training.

Causal attribution. Sainsbury's statements to the BBC and the Guardian and the shopper's account of the voucher.

  • bbc.co.uk(opens in new tab) supports · English
    He was redirected to Sainsbury's, which apologised and offered him a £75 shopping voucher.
  • bbc.co.uk(opens in new tab) supports · English
    Sainsbury's told the BBC that management in the Elephant and Castle store would be receiving additional training.
  • theguardian.com(opens in new tab) supports · English
    with additional training provided after this incident to ensure our safeguards are consistently followed.
Reported The shopper reports being embarrassed and intimidated, feeling like a criminal without understanding why, feeling helpless while being passed between Sainsbury's and Facewatch, and having no interest in shopping at Sainsbury's afterwards.

Causal attribution. The shopper's own statements to LBC, PA and the Guardian. No independent assessment of the effect was inspected.

Sources

6 sources inspected, from 1 underlying account. Sources that repeat one account do not corroborate each other.

How the sources were read, and where the events happened

PA News Agency copy on a Newsquest local site (Enfield Independent). The page carries no date. Applies to s5.

Event countries: United Kingdom. Affected-person countries: United Kingdom. Court countries: Unknown.

Event: a Sainsbury's store in Elephant and Castle, south London (BBC, PA, Sainsbury's statement). Affected person: the LBC report says the shopper has lived in Elephant and Castle for 15 years. No court.

Reviewed for publication 2026-09-29: Published under the 2026-09-15 charter as an ordinary adverse experience with an automated system. The BBC, LBC, Guardian and PA reports and The Register were read in full from saved bodies and treated as one reporting chain (the shopper's interviews plus company statements). Claims stay at reported status and company statements are attributed. The shopper spoke publicly under their own name and is not named in this record.

People reported harmed in this case

1 person

0 AI participants · 1 other person harmed

One shopper reported being told to leave and distressed. The other person for whom the system reportedly raised an alert is not reported as harmed and is not counted.

Counted once within this case. The same person may appear in other cases. This count does not establish AI causation.

Cite this case

Compiled per our published methodology: verification statuses, sourcing standards, and corrections process.

APA

NOPE. (2026). London: shopper told to leave a Sainsbury's store after a Facewatch facial recognition alert, which Sainsbury's says concerned a different person. AI incidents. https://nope.net/incidents/2026-elephant-and-castle-sainsburys-facewatch-shopper-told-to-leave

BibTeX

@misc{2026_elephant_and_castle_sainsburys_facewatch_shopper_told_to_leave,
  title = {London: shopper told to leave a Sainsbury's store after a Facewatch facial recognition alert, which Sainsbury's says concerned a different person},
  author = {NOPE},
  year = {2026},
  howpublished = {AI incidents},
  url = {https://nope.net/incidents/2026-elephant-and-castle-sainsburys-facewatch-shopper-told-to-leave}
}

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